Receptors, MuscarinicMuscarinic AntagonistsAcetylcholineMuscarinic AgonistsReceptor, Muscarinic M1Receptor, Muscarinic M3ParasympatholyticsPirenzepineAtropineN-MethylscopolamineCarbacholParasympathomimeticsGlycopyrrolateScopolamine DerivativesReceptor, Muscarinic M4Scopolamine HydrobromideQuinuclidinyl BenzilateReceptors, CholinergicOxotremorineGallamine TriethiodideDiaminesMuscarineCholinergic AgonistsReceptors, NicotinicNicotinic AntagonistsCholinergic AgentsPropylbenzilylcholine MustardDicyclomineCholinergic AntagonistsTropanesBenzilatesPiperidinesArecolineReceptor, Muscarinic M2QuinuclidinesGuinea PigsDose-Response Relationship, DrugPilocarpinealpha7 Nicotinic Acetylcholine ReceptorPhysostigmineNicotinic AgonistsMecamylamineCholinesterase InhibitorsParasympathetic Nervous SystemAtropine DerivativesRats, Sprague-DawleySomanMuscle, SmoothMuscle ContractionNicotineCholinergic FibersHexamethonium CompoundsBungarotoxinsTupaiidaeIleumElectric StimulationRadioligand AssayBinding, CompetitiveHexamethoniumTorpedoSarinPhenylpropanolamineCalciumBronchodilator AgentsVesicular Acetylcholine Transport ProteinsAdrenergic beta-2 Receptor AgonistsRats, WistarTracheaNeuronsMembrane PotentialsBronchoconstrictionUrinary BladderSynaptic TransmissionPhosphatidylinositolsBethanecholDrug InteractionsTubocurarineElectrophysiologyTime FactorsInositol PhosphatesDopamine AntagonistsExcitatory Amino Acid AntagonistsRats, Inbred StrainsHormone AntagonistsAdministration, InhalationAdrenergic alpha-AntagonistsCricetinaeCerebral CortexMicrodialysisKineticsNeuromuscular JunctionNeurokinin-1 Receptor AntagonistsCells, CulturedElectric OrganMyopiaNarcotic AntagonistsAcetylcholinesteraseMyocardiumHistamine H2 AntagonistsPulmonary Disease, Chronic Obstructive